Home / 7,745.90-10,689.36-4,389.33

Finding the Fourth Proportional to 7,745.90, 10,689.36 and 4,389.33

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Solution

The fourth proportional to 7,745.90, 10,689.36 and 4,389.33 is: 6,057.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.90 : 10,689.36 = 4,389.33 : x
  2. Step 2: Convert to fraction form
    7,745.90/10,689.36 = 4,389.33/x
  3. Step 3: Cross multiply
    7,745.90x = 10,689.36 × 4,389.33
  4. Step 4: Simplify right side
    7,745.90x = 46,919,128.53
  5. Step 5: Solve for x
    x = 46,919,128.53/7,745.90
  6. Step 6: Final answer
    x = 6,057.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.